Arq's three largest insider shareholders as of April 28, 2026 are Julian Alexander Mcintyre (Director, 3.19Mn shares), Fundamental Advisers Llc Alta (Director, 2.03Mn shares), Fundamental Advisers Llc Alta (Director, 2.02Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Julian Alexander Mcintyre | - | 0 | 3,191,289 | 06 Oct, 2025 |
| Fundamental Advisers Llc Alta | - | 0 | 2,028,963 | 03 Jul, 2024 |
| Fundamental Advisers Llc Alta | - | 0 | 2,016,455 | 05 Jul, 2023 |
| Jeremy Blank | - | 0 | 1,987,434 | 27 Nov, 2024 |
| Robert E. Rasmus | Chief Executive Officer | 0 | 527,779 | 19 Jul, 2023 |
| Robert E. Rasmus | Chief Executive Officer | 479,937 | 0 | 25 Mar, 2026 |
| Julian Alexander Mcintyre | - | 0 | 446,984 | 27 Nov, 2024 |
| Richard Campbell-Breeden | - | 0 | 404,786 | 24 Mar, 2026 |
| Joseph M Wong | Chief Technology Officer | 390,601 | 0 | 25 Mar, 2026 |
| Jeremy Blank | - | 0 | 374,955 | 28 May, 2025 |
| Jeremy Blank | - | 0 | 324,955 | 02 Apr, 2024 |
| Greg Marken | Ceo | 186,411 | 0 | 27 Mar, 2023 |
| Jeremy Williamson | Chief Operating Officer | 185,606 | 0 | 03 Mar, 2026 |
| Louis Spencer Wells | - | 102,927 | 0 | 03 Jul, 2024 |
| Claiborne Benson Smith | Gen Counsel, Corp Secretary | 94,466 | 0 | 25 Mar, 2026 |
| Richard Campbell-Breeden | - | 86,868 | 0 | 03 Jul, 2025 |
| Jeremy Blank | - | 78,762 | 0 | 03 Jul, 2025 |
| Robert E. Rasmus | Chief Executive Officer | 0 | 70,718 | 12 Nov, 2025 |
| Jay Loring Voncannon | Chief Financial Officer | 65,000 | 0 | 13 Nov, 2025 |
| Morgan Fields | Chief Accounting Officer | 64,599 | 0 | 21 Aug, 2023 |
| Stacia Hansen | Chief Accounting Officer | 64,305 | 0 | 25 Mar, 2026 |
| Julian Alexander Mcintyre | - | 58,978 | 0 | 03 Jul, 2025 |
| Richard Campbell-Breeden | - | 0 | 52,742 | 03 Feb, 2023 |
| Jeremy Blank | - | 0 | 47,416 | 21 Nov, 2024 |
| Theodore James Sanders | General Counsel | 28,231 | 0 | 23 Nov, 2021 |
| Robert E. Rasmus | Chief Executive Officer | 0 | 20,718 | 15 May, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 23 Mar, 2026 | Stacia Hansen | Common Stock | D | 8,894 | $2.27 | 64,305 | D | F |
| 23 Mar, 2026 | Joseph M Wong | Common Stock | D | 10,085 | $2.27 | 390,601 | D | F |
| 23 Mar, 2026 | Robert E. Rasmus | Common Stock | D | 845 | $2.27 | 479,937 | D | F |
| 23 Mar, 2026 | Claiborne Benson Smith | Common Stock | D | 8,025 | $2.27 | 94,466 | D | F |
| 23 Mar, 2026 | Richard Campbell-Breeden | Common Stock | A | 150,000 | $2.21 | 404,786 | I | P |
| 17 Mar, 2026 | Joseph M Wong | Common Stock | A | 10,000 | $1.89 | 400,686 | D | P |
| 12 Mar, 2026 | Claiborne Benson Smith | Common Stock | A | 1,000 | $1.92 | 101,491 | D | P |
| 16 Mar, 2026 | Claiborne Benson Smith | Common Stock | A | 1,000 | $1.92 | 102,491 | D | P |
| 27 Feb, 2026 | Jeremy Williamson | Common Stock | A | 68,600 | - | 203,888 | D | M |
| 27 Feb, 2026 | Joseph M Wong | Common Stock | A | 40,286 | - | 408,024 | D | M |
| 27 Feb, 2026 | Claiborne Benson Smith | Common Stock | A | 28,229 | - | 110,667 | D | M |
| 27 Feb, 2026 | Joseph M Wong | Common Stock | D | 17,338 | $3.51 | 390,686 | D | F |
| 27 Feb, 2026 | Claiborne Benson Smith | Common Stock | D | 10,176 | $3.51 | 100,491 | D | F |
| 27 Feb, 2026 | Jeremy Williamson | Common Stock | D | 18,282 | $3.51 | 185,606 | D | F |
| 27 Feb, 2026 | Joseph M Wong | Performance Share Units | D | 30,225 | $0.00 | 0 | D | M |
| 27 Feb, 2026 | Claiborne Benson Smith | Performance Share Units | D | 21,179 | $0.00 | 0 | D | M |
| 27 Feb, 2026 | Jeremy Williamson | Performance Share Units | D | 51,467 | $0.00 | 0 | D | M |
| 11 Nov, 2025 | Richard Campbell-Breeden | Common Stock | A | 28,638 | $3.54 | 254,786 | I | P |
| 10 Nov, 2025 | Jay Loring Voncannon | Common Stock | A | 9,000 | $3.74 | 59,000 | D | P |
| 11 Nov, 2025 | Jay Loring Voncannon | Common Stock | A | 6,000 | $3.55 | 65,000 | D | P |